Omega Constellation Constellation Co‑Axial Master Chronometer 27 Small Seconds Stainless Steel / Red Gold / MOP

Reference 127.20.27.20.55.001

About this watch

The Omega Constellation Co-Axial Master Chronometer with the reference number 127.20.27.20.55.001 is a stunning representation of luxury watches. This exquisite timepiece combines innovative technology, elegant design, and rich heritage. Its luxurious materials, including red gold and stainless steel, create a striking contrast that exudes sophistication. The mother of pearl dial adds an iridescent quality, making every glance at the watch feel like a moment of discovery. The open case back allows you to admire the intricate movement of the Omega Caliber 8704, which features the renowned Co-Axial escapement and Master Chronometer certification granted by METAS. This self-winding movement is a marvel of engineering, significantly reducing friction between components for greater accuracy and longevity. The watch is packed with features that enhance its usability, including classic hours, minutes, small seconds hand, and date function. With a water resistance rating of 100 meters, this watch can handle daily wear and occasional exposure to water. Its design is timeless, making it a worthy investment for years to come.
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Key Features

  • Luxurious red gold and stainless steel materials
  • Mother of pearl dial with gem-set indexes
  • Omega Caliber 8704 Co-Axial escapement movement
  • Master Chronometer certification by METAS
  • Water resistance up to 100 meters
  • Date function and small seconds hand
  • Classic hours, minutes, and Dauphine hands for optimal legibility

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co‑Axial Master Chronometer 27 Small Seconds Stainless Steel / Red Gold / MOP
Reference
127.20.27.20.55.001
Movement
8704
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
27mm
Dial Color
White
Crystal
Sapphire
Water Resistance
100

Current Listings

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  • Condition: Exceptional for ~50 years old
  • Case Shape: cushion-shaped
  • Case Plating: gold-plated
  • Dial Type: sunburst champagne
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Dec 8, 2025, 9:05 PM
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  • Bracelet type: Original brick style
  • Crown origin: Constellation pie pan
  • Serviced: Yes, couple years ago
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  • Condition: Great serviced condition
  • Case size: 35mm diameter
  • Movement type: automatic
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  • Case size: 35mm (without crown)
  • Lug to lug: 38mm
  • Lug width: 23mm
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  • Condition: Preowned with wear, dents, and marks
  • Case material: stainless steel
  • Movement: quartz
  • Band size: approximately 18 cm
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  • Condition: Good condition, minor scratches and natural marks for its age
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  • Lug width: 19mm
  • Movement: Caliber 561, chronometer-rated automatic with date complication
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  • Condition: Excellent
  • Diameter: 35.5mm
  • Thickness: 10mm
  • Water Resistance: 3ATM
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[WTS] Omega Constellation Automatic Chronometer Ref. 167.005 | Great Condition (Serviced) | $1250

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  • Condition: great serviced condition
  • Movement: Omega Caliber 551
  • Power reserve: over 40 hours
  • Case size: 34mm
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